Patents by Inventor David W. Holsonbake

David W. Holsonbake has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4699275
    Abstract: An apparatus for separating larger foreign bodies from a granular feed including a conveyor for moving a mixture of the larger foreign bodies and the granular feed, is provided. The apparatus comprises a wheel having an axis of rotation, a circumference and a plurality of outwardly extending resilient fingers, preferably projecting at a trailing angle from the circumference. The wheel is mounted so that its plane forms an angle with respect to the direction of travel of the conveyor. The wheel is positioned so that the conveyed mixture contacts and pushes the fingers causing the wheel to rotate and the fingers to rake the larger foreign bodies from the mixture.
    Type: Grant
    Filed: October 28, 1985
    Date of Patent: October 13, 1987
    Assignee: International Minerals & Chem. Corp.
    Inventor: David W. Holsonbake